WHAT: The Mafioso wannabe ordered his followers to pack a Bronx, N.Y., courtroom to intimidate an accomplice who was about to testify against him in a murder case, according to prosecutors.

HOW: Carbuccia was taped making phone calls from Rikers Island to set up a stare-down with turncoat pal Eduardo Urritia similar to a famous scene in the classic flick “The Godfather: Part II,” when character Frank Pentangeli is about to rat out Michael Corleone, pictured at left, to a congressional committee.

OUTCOME: The tactic has worked so far. Urritia, who pleaded guilty to manslaughter in exchange for his testimony against Carbuccia and two cohorts, has twice refused to answer questions on the stand. Urritia was given a plea deal that would see him free before summer if he testified. But if he refuses a third time, he can expect to face a murder charge, prosecutors said.